GUPTA, RAMWANT, et al. “Response of Photosynthesis, Chlorophyll Fluorescence and Yield of Finger Millet (Eleusine Coracana) Influenced by Bio-Chemical Fertilizers”. The Indian Journal of Agricultural Sciences, vol. 81, no. 5, May 2011, https://doi.org/10.56093/ijas.v81i5.5907.